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OsACL-A2 Regulates Positive Iron Uptake and Blast Resistance in Rice OsACL-A2调控水稻正铁吸收和稻瘟病抗性
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-09-01 DOI: 10.1016/j.rsci.2025.03.007
Wenjing Duan , Chan Aaron , Peng Xu , Yingxin Zhang , Lianping Sun , Beifang Wang , Yongrun Cao , Yue Zhang , Dian Li , Daibo Chen , Yongbo Hong , Xiaodeng Zhan , Weixun Wu , Shihua Cheng , Qun’en Liu , Liyong Cao
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引用次数: 0
TSA4, Encoding an RsgA GTPase, is Required for Temperature-Dependent Chloroplast Development in Rice 编码RsgA GTPase的TSA4在水稻温度依赖性叶绿体发育中是必需的
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-09-01 DOI: 10.1016/j.rsci.2025.08.001
Xue Kexin , Guo Liang , Min Lizhang , Chen Zuwu , Liu Wenqiang , Li Xiaoxiang , Dong Zheng , He Pan , Zhang Haiwen , Pan Xiaowu
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引用次数: 0
Genetic Investigation Reveals That High Heterozygous Frequency in Selfing Offspring Promotes Multi-Generational Heterosis in Polyploid Rice 遗传研究表明,自交后代的高杂合频率促进了多倍体水稻的多代杂种优势
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-09-01 DOI: 10.1016/j.rsci.2025.04.010
Zhu Lianjun , Huang Yu , Yang Jia , Chen Rou , Wu Jinwen , Liu Xiangdong , Lu Zijun
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引用次数: 0
Grain Zinc 7 Contributes to Zinc Deficiency Tolerance and Accumulation in Rice 籽粒锌7对水稻耐锌和锌积累的影响
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-09-01 DOI: 10.1016/j.rsci.2025.04.007
Tang Jichun , Zhan Junhui , Liu Yuxi , Li Shuangyuyan , Lu Xiang , Meng Lijun , Ye Guoyou
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引用次数: 0
Straw Burning Dilemma in Modern Agriculture: A Systematic Review of Driving Factors, Environmental Impacts, and Sustainable Solutions 现代农业秸秆焚烧困境:驱动因素、环境影响及可持续解决方案的系统综述
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-09-01 DOI: 10.1016/j.rsci.2025.06.007
Ghada Abd Elsattar Mohammed Oraby , Fadillah Putra , M. Halim Natsir , Dian Siswanto , Meshal M. Abdullah , Ammar Abulibdeh
Straw burning has emerged as a persistent and multifaceted challenge within global agricultural systems, particularly across Asia, Africa, and Latin America. This review reframes straw burning not as an isolated behavioral issue, but as the outcome of interlinked structural, technological, and socio-cultural constraints embedded in modern agricultural transitions. Drawing on a synthesis of recent empirical studies, we identify four conceptual turning points that reshape the understanding of straw burning: the structural consequences of mechanization, the trade-offs between high- and low-tech solutions, the cultural legitimacy of burning practices, and the need for systems-based, climate-aligned management paradigms. The analysis reveals that interventions focusing solely on technical innovation often overlook the deeper institutional and cultural factors that sustain burning as a rational choice under constrained conditions. We advocate for hybrid, place-based strategies that combine accessible agronomic practices with long-term investments in infrastructure, policy alignment, and community engagement. Moving beyond fragmented solutions and adopting an integrated systems lens enables this study to contribute a forward-looking framework for sustainable straw management that is environmentally just, socially legitimate, and economically viable.
秸秆焚烧已成为全球农业系统中持续存在的多方面挑战,特别是在亚洲、非洲和拉丁美洲。这篇综述认为秸秆焚烧不是一个孤立的行为问题,而是现代农业转型中嵌入的相互关联的结构、技术和社会文化约束的结果。综合最近的实证研究,我们确定了重塑对秸秆焚烧理解的四个概念转折点:机械化的结构性后果、高科技和低技术解决方案之间的权衡、焚烧实践的文化合法性,以及对基于系统的、与气候一致的管理范式的需求。分析表明,仅仅关注技术创新的干预往往忽视了更深层次的制度和文化因素,这些因素使燃烧在受限条件下成为一种理性选择。我们提倡混合的、基于地方的战略,将可获得的农艺实践与基础设施、政策协调和社区参与的长期投资相结合。超越碎片化解决方案,采用综合系统视角,使本研究能够为可持续秸秆管理提供前瞻性框架,实现环境公正、社会合法和经济可行。
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引用次数: 0
Evaluating Efficacy of ZnO and MgO Nanoparticles on Post-Harvested Rice to Enhance Food Security Against Agroterrorism 评价氧化锌和氧化镁纳米颗粒对收获后水稻的效果,提高粮食安全防范农业恐怖主义
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-09-01 DOI: 10.1016/j.rsci.2025.04.012
Daisy Wilson , Valeria Gonzalez , Hamidreza Sharifan
Assessing the resilience of rice varieties against bioterrorism agents is critical to safeguarding food security. This study evaluated Food and Drug Administration-approved and recognized as safe metallic oxide nanoparticles (NPs) of zinc oxide (ZnO) and magnesium oxide (MgO) as protective strategies to reduce susceptibility in imported rice varieties to a biothreat model, Escherichia coli. Two types of rice (brown and white) from four countries (USA, Mexico, India, and Thailand) were treated with 60 mg/L NPs or their ionic forms and sterilized before inoculation. The treatments were analyzed for nutritional profiles, heavy metal content, and pathogen susceptibility. Rice organic compositions were characterized by Fourier transform infrared spectroscopy, and metal were contents quantified using inductively coupled plasma optical emission spectroscopy. Pathogenic response was monitored using ultraviolet mass spectrophotometry. The findings revealed that nutrient-rich varieties like brown rice from Mexico displayed reduced susceptibility to E. coli compared with white rice from India, which showed the highest susceptibility. NP fortification demonstrated significant antimicrobial efficacy, particularly with ZnO and MgO NPs, which were more effective than their ionic counterparts in inhibiting bacterial growth. Results showed that ZnO and MgO NP treatments reduced E. coli growth by 72% and 68%, respectively, compared with untreated controls. Brown rice from Mexican treated with MgO NPs exhibited the lowest optical density at 600 nm (OD600 0.01), indicating significantly enhanced resistance to bacterial proliferation. This research underscores the potential of nano-fortification not only to improve pathogen resilience in rice but also to maintain its nutritional integrity. This study provides a foundational framework for enhancing food safety against bioterrorism agents and supports the development of resilient agricultural practices.
评估水稻品种抵御生物恐怖主义药剂的能力对保障粮食安全至关重要。本研究评估了美国食品和药物管理局(fda)批准并认可的安全氧化锌(ZnO)和氧化镁(MgO)金属氧化物纳米颗粒(NPs)作为降低进口水稻品种对生物威胁模型大肠杆菌易感性的保护策略。用60 mg/L NPs或其离子形式处理4个国家(美国、墨西哥、印度和泰国)的两种水稻(糙米和白米),接种前进行灭菌。分析了不同处理的营养状况、重金属含量和病原菌易感性。利用傅里叶变换红外光谱对水稻有机成分进行了表征,利用电感耦合等离子体发射光谱对金属含量进行了定量分析。采用紫外质谱法监测病原反应。研究结果显示,与印度的白米相比,营养丰富的品种,如墨西哥的糙米,对大肠杆菌的易感性较低,而印度的白米对大肠杆菌的易感性最高。NP强化显示出显著的抗菌效果,特别是ZnO和MgO NPs,它们比离子NPs更有效地抑制细菌生长。结果表明,与未处理的对照组相比,ZnO和MgO NP处理分别使大肠杆菌的生长减少了72%和68%。经MgO纳米粒处理的墨西哥糙米在600 nm处光密度最低(OD600 - 0.01),表明其抗细菌增殖能力显著增强。这项研究强调了纳米强化的潜力,不仅可以提高水稻的抗病性,还可以保持其营养完整性。该研究为加强食品安全防范生物恐怖主义制剂提供了基础框架,并支持了抗灾农业实践的发展。
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引用次数: 0
Molecular and Functional Roles of Tapetum Organelles: A Nursing Staff for Pollen Development 绒毡层细胞器的分子和功能作用:花粉发育的护理人员
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-09-01 DOI: 10.1016/j.rsci.2025.06.003
Asif ALI , Sumer ZULFIQAR , Asad RIAZ , Maneesh LINGWAN , Lianping SUN , Xianjun WU
Male gametes are produced in the anthers and are essential for fertilization and seed setting. A transverse section of the anther reveals four layers: the epidermis, endothecium, middle layer, and tapetum. The tapetum, being the innermost layer, plays a critical role in supplying nutrients, enzymes, and protection to microspores. Detailed microscopic and ultrastructural analyses have revealed highly active and well-organized structures within the tapetum, referred to as tapetal organelles. Molecular studies have highlighted the significance of tapetal cell death and the nurturing role of the tapetum for microspores. However, the mechanisms by which these processes are mediated by tapetal organelles at the cellular level remain elusive. The discovery of mutants defective in tapetal organelles has enabled further investigations into their structure, morphology, and function. This review discusses the molecular and functional roles of various tapetal organelles, such as plastids (amyloplasts and elaioplasts), mitochondria, tapetosomes, endoplasmic reticulum, and lipid bodies. We provide an overview of their roles, highlight key organelles in the tapetum, and address recent challenges and potential applications of genes regulating tapetal organelles in enhancing crop fertility.
雄性配子在花药中产生,对受精和结实子至关重要。花药横切面显示四层:表皮、内胚层、中间层和绒毡层。绒毡层是最内层,在提供营养、酶和保护小孢子方面起着至关重要的作用。详细的显微和超微结构分析揭示了绒毡层内高度活跃和组织良好的结构,称为绒毡细胞器。分子研究强调了绒毡层细胞死亡的重要性以及绒毡层对小孢子的培养作用。然而,这些过程是由毡层细胞器在细胞水平上介导的,其机制尚不清楚。绒毡层细胞器缺陷突变体的发现使得绒毡层细胞器结构、形态和功能的进一步研究成为可能。本文综述了各种毡层细胞器的分子和功能作用,如质体(淀粉体和松质体)、线粒体、绒粒体、内质网和脂质体。我们概述了它们的作用,重点介绍了绒毡层中的关键细胞器,并讨论了绒毡层细胞器调控基因在提高作物肥力方面的最新挑战和潜在应用。
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引用次数: 0
Functions of Rice E3 Ubiquitin Ligases in Response to Environmental Stress and in Regulating Grain Size 水稻E3泛素连接酶在响应环境胁迫和调节籽粒大小中的作用
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-09-01 DOI: 10.1016/j.rsci.2025.06.005
Haifeng Li, Jiayi Fan
The ubiquitin-proteasome system involves three types of enzymes (E1, E2, and E3) that promote protein ubiquitination and degradation. Among these, the E3 ubiquitin ligase mediates substrate specificity. In rice, over 1 500 E3 enzymes have been identified, playing diverse roles in growth, developmental processes, and responses to biotic and abiotic stresses. In recent years, significant progress has been made, with some breakthroughs in regulating disease resistance. Here, we summarize the roles of rice E3 ubiquitin ligases in responding to biotic and abiotic stresses, as well as their functions in regulating key agronomic traits such as seed size. Additionally, future research directions are discussed. This review aims to facilitate further studies on E3 ubiquitin ligases in rice.
泛素-蛋白酶体系统包括三种促进蛋白质泛素化和降解的酶(E1, E2和E3)。其中,E3泛素连接酶介导底物特异性。在水稻中,已经鉴定出超过1500种E3酶,在生长、发育过程以及对生物和非生物胁迫的响应中发挥着不同的作用。近年来取得了重大进展,在抗病调控方面取得了一些突破。本文综述了水稻E3泛素连接酶在应对生物和非生物胁迫中的作用,以及它们在调节种子大小等关键农艺性状中的功能。并对今后的研究方向进行了展望。本文旨在为进一步研究水稻E3泛素连接酶提供参考。
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引用次数: 0
Identification and Characterization of WAKg Genes Involved in Rice Disease Resistance and Yield 水稻抗病与产量相关WAKg基因的鉴定与表征
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-09-01 DOI: 10.1016/j.rsci.2025.04.011
Ayaz Ahmad , Cheng Mingxing , Guo Yu , Luo Xiong , Yang Zihan , Liu Manman , Yuan Huanran , Li Qiancheng , Li Shaoqing , Fan Fengfeng
The wall-associated kinases (WAKs) play a crucial role in rice resistance, but their relationship to yield-related traits remains poorly understood. In this study, we analyzed the rice wall-associated kinase galacturonan-binding (WAKg) gene family and evaluated its association with both disease resistance and grain yield. A total of 108 OsWAKg genes were identified in rice. Promoter cis-element analysis revealed that the promoter regions of OsWAKg genes contain abundant resistance- and hormone-related elements. Induced expression analysis of 18 OsWAKg genes highly expressed in both rice leaves and roots showed that 14 genes were pathogen-induced, 9 were induced by development-related hormones, and 8 were responded to both stimuli. Transgenic validation confirmed that OsWAKg16 and OsWAKg52 positively regulate rice disease resistance and yield. Moreover, OsWAKg52 regulates rice disease resistance through multiple pattern-triggered immunity responses. These findings demonstrate that OsWAKgs significantly contribute to the coordinated regulation of disease resistance and grain yield, providing new insights into rice WAKg gene family and potential genetic resources for synergistic crop improvement.
壁相关激酶(WAKs)在水稻抗性中起着至关重要的作用,但它们与产量相关性状的关系仍然知之甚少。在这项研究中,我们分析了水稻壁相关激酶半乳糖醛酸结合(WAKg)基因家族,并评估了其与抗病性和粮食产量的关系。在水稻中共鉴定出108个OsWAKg基因。启动子顺式元件分析显示,OsWAKg基因的启动子区域含有丰富的抗性和激素相关元件。对18个在水稻叶片和根系均高表达的OsWAKg基因的诱导表达分析表明,14个基因是病原诱导的,9个基因是发育相关激素诱导的,8个基因对两种刺激均有响应。转基因验证证实OsWAKg16和OsWAKg52正调控水稻抗病性和产量。此外,OsWAKg52通过多种模式触发的免疫应答调节水稻抗病能力。这些发现表明,OsWAKgs在水稻抗病性和产量的协同调控中发挥着重要作用,为水稻WAKg基因家族和作物协同改良的潜在遗传资源提供了新的认识。
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引用次数: 0
Genome-Wide Association Study of Brown Rice Weight Identifies an RNA-Binding Protein Antagonistically Regulating Grain Weight and Panicle Number 糙米重量的全基因组关联研究鉴定一种rna结合蛋白拮抗调节粒重和穗数
IF 6.1 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-07-01 DOI: 10.1016/j.rsci.2025.06.002
Lin Zhou , Hong Jiang , Long Huang, Ziang Li, Zhonghao Yao, Linhan Li, Kangwei Ji, Yijie Li, Haijuan Tang, Jinping Cheng, Yongmei Bao, Ji Huang, Hongsheng Zhang, Sunlu Chen
Rice grain yield is primarily determined by three key agronomic traits: panicle number, grain number per panicle, and grain weight (GW). However, the inherent tradeoffs among these yield components remain a persistent challenge in rice breeding programs. Notably, compared with GW, brown rice weight (BRW) provides a more direct metric associated with actual grain yield potential. In this study, we conducted a two-year replicated genome-wide association study to elucidate the genetic architecture of BRW and identify new loci regulating GW. Among seven consistently detected loci across experimental replicates, four were not co-localized with previously reported genes associated with BRW or GW traits. BRW1.1, one of the four newly identified loci, was found to encode a novel RNA-binding protein. Functional characterization revealed that BRW1.1 acts as a negative regulator of BRW, potentially through modulating mRNA translation processes. Intriguingly, through integrated analysis of mutant phenotypes and haplotype variations, we demonstrated that BRW1.1 mediates the physiological tradeoff between GW and panicle number. This study not only delineates the genetic determinants of BRW but also identifies BRW1.1 as a promising molecular target for breaking the yield component tradeoff in precision rice breeding.
水稻产量主要由三个关键农艺性状决定:穗数、每穗粒数和粒重。然而,这些产量组成部分之间的内在权衡仍然是水稻育种计划中一个持续的挑战。值得注意的是,与糙米重量相比,糙米重量(BRW)提供了与实际粮食产量潜力更直接相关的指标。在这项研究中,我们进行了为期两年的重复全基因组关联研究,以阐明BRW的遗传结构并确定调节GW的新位点。在实验重复中一致检测到的7个位点中,有4个与先前报道的与BRW或GW性状相关的基因没有共定位。BRW1.1是四个新发现的基因座之一,被发现编码一种新的rna结合蛋白。功能表征显示BRW1.1作为BRW的负调控因子,可能通过调节mRNA翻译过程。有趣的是,通过对突变体表型和单倍型变异的综合分析,我们发现BRW1.1介导了GW和穗数之间的生理权衡。该研究不仅描述了BRW的遗传决定因素,而且还确定了BRW1.1是一个有希望的分子靶点,可以打破水稻精密育种中产量成分的权衡。
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Rice Science
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